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91 lines
2.4 KiB
91 lines
2.4 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/hwmon/ti,tmp513.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: TMP513/512 system monitor sensor |
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maintainers: |
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- Eric Tremblay <[email protected]> |
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description: | |
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The TMP512 (dual-channel) and TMP513 (triple-channel) are system monitors |
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that include remote sensors, a local temperature sensor, and a high-side |
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current shunt monitor. These system monitors have the capability of measuring |
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remote temperatures, on-chip temperatures, and system voltage/power/current |
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consumption. |
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Datasheets: |
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https://www.ti.com/lit/gpn/tmp513 |
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https://www.ti.com/lit/gpn/tmp512 |
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properties: |
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compatible: |
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enum: |
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- ti,tmp512 |
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- ti,tmp513 |
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reg: |
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maxItems: 1 |
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shunt-resistor-micro-ohms: |
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description: | |
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If 0, the calibration process will be skiped and the current and power |
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measurement engine will not work. Temperature and voltage measurement |
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will continue to work. The shunt value also need to respect: |
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rshunt <= pga-gain * 40 * 1000 * 1000. |
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If not, it's not possible to compute a valid calibration value. |
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default: 1000 |
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ti,pga-gain: |
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description: | |
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The gain value for the PGA function. This is 8, 4, 2 or 1. |
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The PGA gain affect the shunt voltage range. |
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The range will be equal to: pga-gain * 40mV |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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enum: [1, 2, 4, 8] |
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default: 8 |
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ti,bus-range-microvolt: |
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description: | |
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This is the operating range of the bus voltage in microvolt |
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enum: [16000000, 32000000] |
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default: 32000000 |
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ti,nfactor: |
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description: | |
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Array of three(TMP513) or two(TMP512) n-Factor value for each remote |
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temperature channel. |
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See datasheet Table 11 for n-Factor range list and value interpretation. |
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$ref: /schemas/types.yaml#/definitions/uint32-array |
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minItems: 2 |
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maxItems: 3 |
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items: |
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default: 0x00 |
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minimum: 0x00 |
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maximum: 0xFF |
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required: |
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- compatible |
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- reg |
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additionalProperties: false |
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examples: |
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- | |
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i2c { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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tmp513@5c { |
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compatible = "ti,tmp513"; |
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reg = <0x5C>; |
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shunt-resistor-micro-ohms = <330000>; |
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ti,bus-range-microvolt = <32000000>; |
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ti,pga-gain = <8>; |
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ti,nfactor = <0x1 0xF3 0x00>; |
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}; |
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};
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